Strategy Definition and 114 Threads

Hello, I was lying in bed the other day and an idea came to my mind. How does one actually solve a problem? Now, I know this question is impossible to answer, but I would like to know your strategies when it comes to solving problems. I would like to make an analogy to this. Let's say that you...

I've been out of school for over a year because of some drastic physical health garbage, and I'm thinking about going back in 3-6 months, to a 2 year school. One of the schools a little further down from me has a big grant from NSF...

Once in Final Jeopardy the first contestant held $1000 with the other two tied with $12,000 apiece. The first bet $999 and got the question wrong, leaving him with one dollar. The other two both bet their entire stake and got the answer wrong, leaving them with zero dollars. The first...

Looking for help to try an make a profitable strategy off the example. payout= 1:1 Using 4 rounds the strategy wins 1 of 4 rounds 90% of the time, the other 10% it loses all 4 rounds Rules: if any round is won that game is over, else keep betting till all 4 rounds over The question is how to I...

Like I said, I was taught during the TCP congestion control lecture what is the slow-start strategy, how it works & looks in a very high level, we never saw anything related to parameters and calculations, and after the test she gave the entire class a bonus of 35 points because she knew it...

A computer program that was supposed to handle this was bought and tried, and it made a mess of it, so the idea is that perhaps it would be easier to give a strategy to someone (computer savvy, but an amateur, not a professional ) to program (not requiring too much power of the computer on which...

Hi, just wanting to know the answer to this. What parts of the brain do playing these games stimulate? What effects do playing these games have on the brain? what brain functions do they improve or strengthen? more specifically I mean the games call to power 1 and/or empire Earth 1. Note that i...

You are given the opportunity to play a game where a coin will be tossed 10,000 times consecutively. You have a starting bankroll of $1,000,000. The coin may be biased (you are not given any information as to what the probability or the degree of bias might be). A bet on either heads or tails is...

For instance, consider two sources of light ##S_{1}## and ##S_{2}## where ##S_{1}## is emitting with a phase angle ##\frac{\pi}{4}## greater than ##S_{2}##. The light from ##S_{1}## travels a straight distance ##d_{1}## through a medium of refractive index ##n_{1}##. The light from ##S_{2}##...

The only one that I can see is for the potential $$V=-\frac{2GM}{3r}$$ since the midpoint of the two masses satisfies this equation. The only other useful inference I can make is that the most negative potentials closes to the surface of either planet, and the lowest potentials will be far away...

My attempted solutions was, for example let's say we have 4 atoms, and if i ask the oracle about any two atoms that are connected by edge, i can narrow done some possibilities to two atoms. I'm still not sure where i am going with my solution, but if any of you can think this through and come up...

Hi. I'm trying to parallelize my code. I am new at MPI, I'm learning the basics. I want to use a domain decomposition strategy in my code. I've been reading a bit, and wanted to use this subroutine to exchange points between neighbors. I've started by trying to modify a code presented by Gropp...

This question comes from the "Introduction to Probability" book (Blitzstein & Hwang). Martin has just heard about a gambling strategy: bet 1 dollar that a fair coin will land heads. If it does, stop. If it lands tails, then double the bet for the next toss, now betting 2 dollars on heads. If it...

Hey! :o I am looking the following: There are 1 Million voters. 2000 of them know exactly that they will vote for A, but the other 998000 will decide if whether they will vote for A or B in the voting booth using a coin. With which possibility will A get more votes? At a quiz we get...

Homework Statement Find an equation of the circle passing through: A(-3,1) with radius 2 and centre on the line 2x-3y+3=0 Homework Equations x2+y2+2gx+2fy+c=0 r2=g2+f2-c The Attempt at a Solution using this equation , i have found 2 equations -6g+2f+c=-10 by putting (-3,1) -2g+3f+3=0...

Thinking about establishing a network across campuses in the U.S that would involve on campus groups producing the utensils, straws and cups, etc.. for the campus cafeterias. Was wondering if anyone had any suggestions as to what technology would be best to most efficiently create pretty...

Here is a problem that should be simple for most anyone on this forum but I thought it might be fun to throw it out there . . . Background: There is a certain 4 day (or so) river float in Montana that is so popular that about 20 years ago the state decided to limit floaters by issuing float...

This is my funny theory (may be I have found already known things...).Let us assume the following abstract situation. We have a special place where people can get some kind of service (for instance any bureaucratic office). There is only one service clerk who spend a fixed time (we will call it...

What're the best strategies or techniques you've used in order to get at least an A- in any given class?

[Moderator's note: moved to homework forum.] Hello there, I am stuck at a problem, and I need some hits/solution strategy to get going. Suppose we consider linearized gravity, and there is some mass, ##M## at the origin at some unknown coordinates the metric is $$ ds^2 = -(1 + 2 \phi)dt^2 +...

Does anyone have any good reading strategies which they use to plough through academic papers? I'm currently a little bit daunted by the amount of stuff out there that would be worth reading, and it's almost paralysing me a little. Advice on any of the below would be useful: - Deciding what to...

This paper; https://arxiv.org/abs/1701.03418, Direct Probe of Dark Energy through Gravitational Lensing Effect, addresses a potential means to measure dark energy over cosmological distances. Perhaps I am a bit slow, but, I found the basic idea sufficiently simple and obvious that I am surprised...

When driving on snow and ice does engine braking (by downshifting) provide more traction than applying brakes in a slow and controlled manner?

This is an interesting riddle from here: http://www.brand.site.co.il/riddles/201607q.htm I'm having difficulty understanding the problem. If each hat is black/white with 50-50 probability, independent of the colors of other hats, then the probability of winning for n=2 is always 1/4, no matter...

Hi, suppose two players are a playing a game with a non-square payoff matrix, like for example this one: ...a...b... A: (1,3) (1,0 B: (0,0) (2,1) C: (3,1) (0,3) How would one go about finding an optimal mixed strategy for something like this? I mean, if this was a 3x3 matrix then one could find...

The instructions are given below: I'm thinking about using array to print out the board and then assign different values to display the bomb and where the user is. Then use a switch statement to make all the potential if statements i will use much cleaner. Am I on the right track at least? But...

Hello guys please help me on this... The next hurdle in my understanding of frequency compensation comes as following… As the text says… My problem is that as we move from point 1 to 2, the frequency increases so the phase shift should also increase..(as phase shift depends on frequency)…...

If I spend 8 years in grad school but publish lots of papers, let's say 20 as first author and have a very good thesis can I skip being a post doc and go straight to being a associate professor? Also let's assume the Ph.D and professorship is in theoretical physics.

ohk, let me make it more clear for you, the situation is we have a boiler generating steam at 23.5 barg, which is throtlled down to 12 barg for import/ export, this 23.5 barg steam is throttled down to 3 barg by another valve to use in heat exchanger, and then this 23.5 barg steam is throttled...

Dear Physics Forum advisers, I am an undergraduate student in US and an inspiring applied mathematician in the fields of theoretical computer science. I recently have been reading a book called "Joy of Learning" by Hironaka Heisuke, a mathematician and Fields Medalist (1970); the book seems to...

Setting info - take it as granted. Strategy - treat it as an open issue, if you see an alternative solution, please suggest it. Setting - natural conditions Planet to defend - Earthlike, tidal locked around red dwarf, water world, cold, 3 atm Main weakness point - gates - that allow...

Question – A single block reduces the force on the pull by ½ and double the length of the rope pulled and double the pulling force? This is the typical quote made on all popular 4x4 winching sites. I have found...

i really need help with studying the actuarial exams. My issue is I am not studying 'smart. and with the difficulty of the exams, studying hard won't get me through. I passed exam P, but I studied way too hard for it; ie 1 year for 5 to 7 hours per day, 5 days per week. It ended up with me...

We had a running gag in my tutoring center whenever someone has a problem with integration, we ask them if they've used the "Master Blaster" to solve it. It stems from my friend who, when we were in Calc BC, he would always use RK on an integration problem to see if it would work. We had a...

My friend proposed to me this problem, as we were playing the boardgame RISK (rules written here http://www.hasbro.com/common/instruct/risk.pdf if you don't know em, I guess the relevant bit is really p10-11). Let's say I want to capture 2 territories, A and B, with 2 and 3 defending pieces on...

Hi everyone, I haven't been successful in Discrete Math this semester. I have finished all of the calculus I-III series and I did very well. I want to know if anyone can give me some tips on how to study for my final coming up in a few days. Now, I understand that is a vague question but I am...

Hi, I would like to establish a advancing/learning way to learn and understand machine elements. Today I tried to search for hydrodynamic radial sliding bearings on search engines but I have find only two results. Is something wrong for it? it should have another names...

I've started to get back into chess. I never had any formal training and was never very good. A friend of mine has got me playing against him via a phone app a few times a week. What is a good basic strategy for me to use? Especially interested in early game. Thanks!

Hello all; I'm in an odd position. I graduated with a degree in molecular biology 2 years ago and now work in a quality control lab for a pharmaceutical manufacturer. My job involves doing things like running gene-amplification reactions for recombinant microorganisms used in drug-production...

As you can see, children of this generation really misuse a games purpose. When, you can study things, and find out the comparisons of the physics to the "law of physics". You see, you can find the gravitational acceleration in just a building game. I'll speak more later

Homework Statement Chomp is a game played by two players. In this game, cookies are laid out on a rectangular grid. The cookie in the top left position is poisoned, as shown in Figure 1(a). The two players take turns making moves; at each move, a player is required to eat a remaining cookie...

So it's been 10 years since I've been out of college, and this year, I've decided to realize my goal of becoming an actuary. My problem is that I keep failing the first preliminary exam. I know that these exams are supposed to be tough, but at the rate that I'm going, technically, I should...

Homework Statement A uniform bar of mass m and length l is suspended on a frictionless hinge. A horizontally launched blob of clay of mass m strikes the bottom end of the bar and sticks to it. After that, the bar swings upward. What is the minimum initial speed v of the blob of clay that...

Two mariners report to the skipper of a ship that they are distances d1 and d2 from the shore. The skipper knows from historical data that the mariners A & B make errors that are normally distributed and have a standard deviation of s1 and s2. What should the skipper do to arrive at the best...

I am a sophomore physics major and having worries about the junior/senior level optics class that I'm currently enrolled in (Optics by Hecht). The prerequisite for the class is only intro physics II which I had last semester but I fear that I still have some catching up to do. A lot of the...

I am taking the PGRE in April and started studying for it this winter. I initially took the 2008 test and was struggling. Then I decided to break the test into sections. First studying only the E&M questions, then mechanics, and so on. I figured out how to do most of the problems after working...

In many of my physics classes we have been using Taylor Expansions, and sometimes I get a bit confused. For example, I feel like different things are going on when one expands (1-x)^-2 vs. e^(-Ax^2), where I just have some constant in front of x^2 to help make my point. To keep things simple...

Hi everyone, I realize this is only loosely related to mathematics, but I didn't know where else to ask this question (if I post it in a finance forum I'll get 100 different answers from people who probably didn't really understand the question). I think mathematicians are the kind of people...

You play against three automated players who’s dice and actions are independent from you. You start with six randomly rolled dice. Rules: -You MUST keep at least one die, but can keep as many as desired. -A (1) and (4) are qualifiers, without both qualifiers you cannot score. These do not...